Having no particular orientation or directional characteristics. Also having no tendency to change position.
没有特别的取向或方向特征，也没有改变位置的倾向。
The principle and development tendency of different directional technologies were expounded.
阐述了不同定向凝固方法的原理以及定向凝固技术的发展趋势。
The principle and development tendency of different directional technologies were expounded.
阐述了不同定向凝固方法的原理以及定向凝固技术的发展趋势。
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